ADUM242D1BRIZ

Common Mode Transient Immunity (Min):	75kV/µs
Base Part Number:	ADUM242
Supplier Device Package:	16-SOIC-IC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	1.7 V ~ 5.5 V
Rise / Fall Time (Typ):	2.5ns, 2.5ns
Pulse Width Distortion (Max):	3ns
Propagation Delay tpLH / tpHL (Max):	13ns, 13ns
Data Rate:	150Mbps
Series:	iCoupler®
Voltage - Isolation:	5000Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	2/2
Number of Channels:	4
Isolated Power:	No
Type:	General Purpose
Technology:	Magnetic Coupling
Part Status:	Active
Packaging:	Tube

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Digital isolators are widely used in a variety of electronic systems to ensure isolation between parts of that system and to protect from noise, power surges, and other electrical interference. The ADUM242D1BRIZ is an analog and digital isolator from Analog Devices that was designed to provide protection with the lowest power dissipation and one of the highest levels of isolation in its class. The ADUM242D1BRIZ offers 2400V rms of galvanic isolation, has a wide operating temperature range, is fully compatible with 5V logic families, and is RoHS compliant.The ADUM242D1BRIZ features two line-driven inputs with selectable slew rates and four available logic families. It also includes three drivers; one non-latching and two latching drivers that are ideal for driving LED or optical isolators. The ADUM242D1BRIZ isolator’s line-driven capability and low-power design allows for high-speed communication between circuits operating at different voltages.ApplicationsThe ADUM242D1BRIZ can be used in a variety of applications, including motor control, industrial automation, telecom, networking, avionics, office automation, and automotive. It is especially well-suited for isolated RS-232 signaling, Industrial Ethernet, USB, and isolated control logic applications.In motor control applications, the ADUM242D1BRIZ can be used to isolate the control circuit from the low-voltage motor winding, allowing for more accurate control and fewer system errors and failures. In industrial automation, the isolator can be used for level shifting and communication between sensors, controllers, and other devices. The ADUM242D1BRIZ can also be used to convert TTL or other LVDS logic signals to RS-485 in telecom, networking, and avionics applications.For automotive applications, the ADUM242D1BRIZ can be used with CAN and LIN fieldbus networks for controlling multiple systems, including fuel injection systems, ABS and traction control systems, powertrain control systems, air conditioning systems, safety systems, and other electronic control units.Working PrincipleThe ADUM242D1BRIZ isolator is designed to work using an optocoupler. An optocoupler consists of a light-emitting diode (LED) and a photoreceiver (usually a photodiode). When a voltage is applied to the LED, current flows through it, allowing it to emit photons which are then detected by the photodetector, allowing current to flow to the output side. The optical path created by the optocoupler effectively isolates the two sides from one another, providing greater protection from electrical noise, surges, and EMI.The ADUM242D1BRIZ isolator also features a wide operating temperature range, low power consumption of less than 550mW, low input current, and high timing accuracy. These features make it ideal for a variety of applications, as it can be used in both low- and high-temperature environments and can easily interface with 5V logic families.ConclusionThe ADUM242D1BRIZ digital isolator from Analog Devices is a low-cost, high-performance device that can be used in a variety of applications that require electrical isolation. It is designed to provide up to 2400V rms of galvanic isolation, a wide operating temperature range, and a low power consumption of less than 550mW. The line-driven inputs and selectable logic families of the ADUM242D1BRIZ make it ideal for many applications, such as motor control, industrial automation, and automotive. Its optocoupler-based working principle provides reliable, robust protection from electrical noise, power surges, and EMI, making it a suitable choice for many types of systems.

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